what I really want to talk about is a strategic issue, a systematic issue, not a pure technological issue. As you know, the graduates from IIT are major forces in some prestigious international architectural firms, such as S.O.M. and Gensler and so on, which have ambitious long term marketing development plan in China. Competition actually begins from the College level. It is crucial for all of us to better understand our opponents. It is common sense that fair cooperation is based on the capacity for competition. It is not simply about culture, not simply about education, not simply about architecture and technology. The purpose is about surviving.